Stock Warrants (Details) - Warrant [Member] - $ / shares	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Stock Warrants [Abstract]
Beginning balance (in shares)	84,000	354,546
Beginning balance (in dollars per share)	$ 1.21	$ 1.21
Stock warrants granted (in shares)	0	0
Stock warrants granted (in dollars per share)	$ 0	$ 0
Stock warrants expired (in shares)	0	0
Stock warrants expired (in dollars per share)	$ 0	$ 0
Stock warrants exercised (in shares)	0	(270,546)
Stock warrants exercised (in dollars per share)	$ 0	$ 1.21
Ending balance (in shares)	84,000	84,000
Ending balance (in dollars per share)	$ 1.21	$ 1.21